US3790434A - Synthetic fibers for artificial hair and production thereof - Google Patents

Synthetic fibers for artificial hair and production thereof Download PDF

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Publication number
US3790434A
US3790434A US3790434DA US3790434A US 3790434 A US3790434 A US 3790434A US 3790434D A US3790434D A US 3790434DA US 3790434 A US3790434 A US 3790434A
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fiber
fibers
synthetic fibers
hair
polymer
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M Sone
M Okazaki
Y Ueyama
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Japan Exlan Co Ltd
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Japan Exlan Co Ltd
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/28—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D01F6/38—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds comprising unsaturated nitriles as the major constituent
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/253—Formation of filaments, threads, or the like with a non-circular cross section; Spinnerette packs therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2973—Particular cross section
    • Y10T428/2978—Surface characteristic
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/298—Physical dimension
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31725—Of polyamide
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31786—Of polyester [e.g., alkyd, etc.]

Definitions

  • Such fibers have good esthetic appearance and [58 Field of Search 161/172, 177, 181 as excellent hke feel and DRAPE INDEX- Y 7 Claims, 2 Drawing Figures SENDING RIGIDITY EI FINENESS (05mm) PATENTEB FEB 51974 'DRAPE INDEX-Y FINENESS (DENIER) Wp/h Il LU C) E O Z LU CG INVENTORS MASA O SON E M IT'SUTOSHI OKAZAKI YASUOMI UEYAMA ATTORNEYQ SYNTHETIC FIBERS FOR ARTIFICIAL HAIR AND PRODUCTION THEREOF
  • the present invention relates to synthetic fibers for artificial hair and their production, and more particularly the invention relates to synthetic fibers for artificial hair having quite beautiful esthetic appearance and hand together with excellent hair-like feeling of touch and visual pliability, said synthetic fibers having been provided with specific bending rigidity (El) and drape index (Y) defined hereinafter by controlling
  • the synthetic fibers conventionally produced for artificial hair have such disadvantages that they are lacking in the hair-like pliability based on softness and elasticity, which is most important in wigs, hair pieces, etc., they are bristly and unpleasantly tough, and also they are greatly inferior to hair in the beautiful appearance and hand thereof at the use of them and hair-like wavy pliability and abundant natural wave.
  • wigs, hair pieces, etc., prepared by using synthetic fibers produced as artificial hair may be excellent in the points of cleaning, etc., the commercial values of them are quite inferior in pliability and appearance to wigs, hair pieces, etc., prepared by using hair.
  • a primary object of this invention is to provide improved synthetic fibers for artificial hair.
  • Another object of this invention is to provide synthetic fibers for artificial hair provided with the pliability similar to the touch of hair and the visual pliability shown by hair in a natural state.
  • Still other object of this invention is to provide synthetic fibers for artificial hair having very beautiful ap- 0.04X 10 E Y llll 0.28 X10 5 EH 1.8 x10 That is, when the bending rigidity (El) of synthetic fibers, which represents the pliability by touch, is from 2.0 dyne-cm to 9.5 dyne'cm the drape index (Y) of the synthetic fibers, which represents the pliability by vision, is from 0.04 X 10' cm to 0.24 X 10' cm, and also the product of El and Y is from 0.28 X 10' to 1.8 X 10 (i.e., they are in the area surrounded by the lines connecting points A, B, C, D, E, and F in FIG.
  • the novel synthetic fibers for artificial hair having a hair-like appearance and hand can be obtained.
  • the bending rigidity (El) of synthetic fibers is from 3.0 dyne-cm to 8.0 dyne'cm
  • the drape index (Y) is less than 0.20 X 10' cm
  • the product of El and Y is more than 0.417 X 10' that is, the bending rigidity El and the drape index of synthetic fibers satisfy the following general equation (II):
  • the above-mentioned bending rigidity El is obtained by the following manner. That is, a stress-strain curve is detected from the bending stress W (dyne) and the bending displacement X (cm.) by using the apparatus tought by R. M. Khayatt and N. H. Chanberlin (Journal of Te xt ile Institute; Vol. 3 9, 185-197 (1948)) and the bending rigidity El is then obtained from the initial slope a ofthe curve by the following equation (III),
  • slope at is a value determined by the stressstrain curve obtained above and has the relation of W aX;
  • such a visual pliability is expressed by the draping property of synthetic fibers hanging downby their own weight when the fibers are placed in a free state and said draping property of fibers is represented by the drape index (Y) by the wellknown theory of cantilever in the strength of materials and calculated by the follower equation (IV) wherein P means the weight (g.) of the fibers per unit length (cm. y is the deflection length (cm.) of the free end of the fibers hung down by the weight thereof, 1 is the length (cm.) of the fibers hung by the weight thereof from the supported point, andEl is the bending rigidity defined before.
  • Y is calculated by introducing the numerical values of El, P and I obtained by the actual measurement to the above general equation (IV).
  • the important facts are that the bending rigidity El be in proportion to the square of the fineness of fibers, while the drapecoefficient be in inverse proportion to the fineness of fibers. From these facts, it will be clearly understood that the bending rigidity and the drape index of fibers are difficult to be defined to a proper range by simply varying the fineness of the fibers. Thus, it has been fundamentally cleared by the results of our investigations that the requirement of the fineness of fibers for obtaining the hair-like pliability by touch is against the requirement of the fineness of the fibers for obtaining the hair-like visual pliability, and the feeling or appearance of the conventional artificial hair prepared from synthetic fibers without considering these facts is greatly inferior to that of hair.
  • FIG. 1 is a view explaining the fineness dependence on the bending rigidity and the drape index used in the present invention
  • FIG. 2 is a graph showing the area formed by the bending ridigity and the drape index in this invention.
  • the present invention provides novel synthetic fibers having a bending rigidity and a drape index defined in a specific range, which have not hitherto been considered in the production of synthetic fibers for artificial hair, as the synthetic fibers for artificial hair provided with the hair-like pliability by touch and also the hairlike visual pliability in a natural state.
  • synthetic fibers having the specific bending rigidity and drape index as defined in the present invention such method is employed that the fineness of fibers on consideration of the specific gravity of the polymer forming the synthetic fibers, the sectional shapes of the fibers, and the modulus of longitudinal elasticity of the fibers are simultaneously controlled.
  • a preferable means for obtaining the syn thetic fibers for artificial hair of this invention is to provide a means of controlling the sectional shapes and the fineness of the synthetic fibers while harmonizing these factors with the modulus of longitudinal elasticity based on the production conditions of the synthetic fibers on considering the spinnability and the production capacity of the polymer as well as the strength of the synthetic fibers necessary in the after-treatment step for the fibers.
  • the synthetic fibers for artificial hair having the bending rigidity and the drape index specified in the present invention are obtained by conducting the spinning of polymer having a specific gravity of p under the conditions satisfying the following general equation (V):
  • a is the longest length p. of the straight line in the cross section of fiber passing from a point of the periphery to the point at the opposite side through the center of gravity thereof
  • b is the longest length p. of the straight line in the cross section of the fiber at a right angle to the line (a) between the points at the periphery of the cross section
  • E is a modulus of longitudinal elasticity (dyne/cm?) of fibers at the production of the synthetic fibers from the polymer.
  • the synthetic fibers for artificial hair provided by the hair-like pliability by touch and also the hair-like visual pliability of this invention can be produced from the synthetic fibers while harmonizing the sectional shapes of the fibers with the modulus of longitudinal elasticity (E) but as the means for obtaining the synthetic fibers for artificial hair having the properties satisfying the purposes of this invention from a specific polymer, a method may be employed in which the specific gravity of the fibers produced from the polymer is positively varied.
  • the specific gravity of synthetic fibers may be varied by adding one or more additives having a different specific gravity from that of a polymer from which the synthetic fibers are produced to a melt of the polymer or a solution of the polymer at the production of the fibers or by introducing an additive capable of varying the specific gravity of synthetic fibers to the synthetic fibers during the spinning of said fibers.
  • any inorganic materials or organic materials having a different specific gravity from the polymer of the fibers may be employed.
  • the specific gravity of synthetic fibers may be varied by using a mixture of polymers, each having a different specific gravity each other or by arranging in layers different polymers along the lengthwise direction of the fibers.
  • the whole well-known fiber-modifying agents such as those for improving the antistatic property of the fibers, improving the hygroscopic property thereof, providing the flame-retarding property to the fibers, improving the dyeing property of the fibers, and improving the luster of the fibers can be preferably used.
  • the synthetic fibers of this invention can be further provided with the additional valuable properties besides the aforesaid properties satisfying the purposes of this invention, which can further increase the commercial value of the synthetic fibers for artificial hair.
  • the present invention can provide the syn thetic fibers for artificial hair having the quite high additional values by incorporating proper additives in the synthetic fibers and hence in the case of producing the additive-containing synthetic fibers satisfying the bending rigidity and the drape index specified by the present invention, the purposes of this invention can be attained with more satisfactory results.
  • a is the longest length ,u. of the straight line in the cross section of a fiber passing from a point at the periphery to a point at the opposite side thereof passing through the center of gravity thereof
  • b is the longest ,length ,u of the straight line in the cross section of the fiber at a right angle to the line (a) and present between two points at the periphery
  • E is the modulus of longitudinal elasticity (dyne/cm?) of the fibers
  • p,, and p are the specific gravities of the polymer for forming the fibers and the additive respectively
  • g and g are the amounts (weight percent) of the polymer for forming fibers and the additive, which constitute the synthetic fibers.
  • the synthetic fibers for artificial hair having the bending rigidity and the drape index specified in this invention are produced by harmonizing the sectional shapes of the fibers with the modulus of longitudinal elasticity E of the fibers on consideration of the specific gravity of the fibers varying by the addition of the additive.
  • the sectional shape of the synthetic fibers for artificial hair of this invention may be a circle, a triangle, a rectangle, a square, an ellipse, star-form, other polygonal shape, and a doughnut-shape but in particular the effect of this invention can be further increased when the sectional shape of fibers is an ellipse.
  • the longest length (a) passing the center of gravity in the sectional area of the fibers be between (60 p. and 115 p. and bla be in the range of from 1/1 to 1/5.
  • the modulus of longitudinal elasticity E determined by the nature of the polymer for forming fibers, the production process of the fibers, and the conditions for producing fibers and is calculated from the bending rigidity El obtained by the above-mentioned general equation (III) according to the following equation (VII) El 0.0491 X ab E but in general, the range of the value E is restricted by the kind of the polymer for forming the synthetic fibers.
  • the value E when polyvinyl chloride is employed as the polymer, the value E is in the range of from 8 X 10 to 13 X 10 dyne/cm. and when an acrylic polymer (polyacrylonitrile or a copolymer of more than 80 percent by weight acrylonitrile and other ethylenically unsaturated monomer) or a modacrylic polymer (a copolymer of less than 80 percent by weight acrylonitrile and vinyl chloride or vinylidene chloride containing, if necessary, otherthird component) is used as the polymer, the value E is from 3 X 10 to X 10 dyne/cm Furthermore, when polyamide is used as the polymer, the value E is in the range of from 0.8 X 10 dyne/cm.
  • the value E to be employed maybe properly determined in-the range defined by the kind of the polymer to be employed by the production conditions for fibers, such as the spinning conditions, the stretching conditions, and the heattreatment conditions.
  • polymers for forming the synthetic fibers for artificial hair of this invention many generally known kinds of fiber-forming polymers may be employed.
  • the typical examples of them are polyamides such as nylon 6, nylon 6,6, etc.; polyesters such as poly(ethyleneglycol'terephthalate). etc.; vinyl polymers such as polyvinyl alcohol, polyvinyl chloride, etc.; acrylic polymers such as polyacrylonitrile, a copolymer of more than 80 percent by weight acrylonitrile and one or more other vinyl monomers, and modacrylic polymers such as a copolymer copolymerizing less than 80 percent by weight acrylonitrile, vinyl chloride or vinylidene chloride, and, if necessary a third component.
  • any well-known spinning manner of producing fibers from polymer such as a melt spinning method, a dry spinning method, a wet spinning method, an emulsion spinning method, etc., may be employed and if necessary, well-known after treatments such as water washing, stretching, drying, and heat-treatment may be applied.
  • the synthetic fibers for artificial hair of this invention are produced by applying a known spinning technique to the polymer for forming the fibers and the particularly important matter in case of producing the synthetic fibers for artificial hair of this invention is the point of selecting such spinnerettes as giving the sectional shape of fibers satisfying the aforesaid general equation (V) or (VI) while harmonizing the shape with the bending modulus of longitudinal elasticity E determined by the known conditions for producing the synthetic fibers from the polymer and in compliance with the spinning method to be employed, a spinnerette having a spinning hole of a circle, a triangle, a Y-form, a square, a rectangle, and ellipse, a starform, or other polygonal form may be employed. Furthermore, the spinnerettes having such structure that two or more polymer melts or polymer solutions can be spun as a composite form or a mixed form may also be employed in this invention.
  • the fineness of a single fiber was measured by the method described in Method D of British Standards 2016-1961, the specific gravity of the fibers was measured by the method described in ASTM D- 1505-67, and the shape factor e expressed by b/a was calculated from a and b obtained from the enlarged photograph of the cross section of a fiber in this specification.
  • the commercially available wigs have the synthetic fibers in which the values El and Y were outside of the ranges defined in this invention, were very inferior in the hair like appearance and thus had very low commercial val- EXAMPLE 1 she with ater,v tr tche n b ina,yya .t 8
  • E, El and Y were dyne/cm. dyne-cm. and cm., respectively.
  • the synthetic fibers 5 and 6 having the bending rigidity and the drape index in the ranges specified in the present invention had excellent hair-like appearance, while the fibers 4 having the bending rigidity and the drape index in the ranges outside the values defined in this invention had a wire-like appearance.
  • the synthetic fibers 8, 9 and 10 having the bending rigidity and the drape index in the ranges defined in this invention were evaluated to have a hair-like pliable feeling, while the synthetic fibers 7 and 11 having the bending rigidity and the drape index in the ranges outside the values of this invention were evaluated to be undesirable in hair-like pliability.
  • a spinning solution prepared by dissolving a polymer consisting of 90 percent acrylonitrile and 10 percent methyl acrylate in dimethyl formamide was wetspun into a coaguration bath of ethyleneglycol at 20C. at a spinning temperature of 50C. by using spinnerettes each having a circular spinning hole of 0.15 mm. in sectional area thereof and then the fibers were subjected to the orientatitve stretching of six times to provide the synthetic fibers for artificial hair 13.
  • a spinning solution prepared by dissolving a mixture of parts of a polymer consisting of 9 0 percent acrylonitrile and 10 percent methyl acrylate and 25 parts of a vinyl chloride-vinylidene chloride copolym er in dimethylformamide was wet-spun into an ethyleneglycol-type coagulation bath maintained at 20C. at a spinning temperature of 50C. by using spinnerettes each having a circular spinning hole of 0.24 mm. in sectional area and then the fibers were subjected to the orientative stretching of 6 times to proyide the synthetic fibers for artificial hair 15.
  • the filaments thus obtained were subjected to the heat stretching of 8 or 10 times and a heat treatment to provide seven kinds of synthetic fibers for artificial hair.
  • the fibers 17, 18, 19 and 21 of this invention had a very excellent flame retarding property and self distinguishing property as well as delustering effect. Further, because the fibers 20 had an antistatic property besides the above mentioned properties, the snythetic fibers could provide a very valuable wig capable of completely preventing the formation of static troubles in combing the hair of the wig.
  • TBCF stands for tris-(lbromo-3-chloroisopropyl)phosphate
  • TDPF stands for tris-(2,3-dibromopropyl)phosphate
  • GMS stands for glyceryl monostearate
  • A0 stands for antimony trioxide.
  • a synthetic fiber for artificial hair having a hairlike appearance and hand, said fiber having a bending rigidity El (dynecm?) and a drape index Y (cm.")satisfying the equations and wherein the longest length a of the straight line in the cross section of the fiber passing from a point on the periphery of the fiber to a point on the opposite side of the fiber through the center of gravity thereof is between and 115 microns, and bla is in the range of from one to one-fifth, b being the longest length of the straight line in the cross section of the fiber at a right angle to the line a between the points at the periphery of the cross section of the fiber.
  • the fiber as claimed in claim 1 wherein said fiber is made of a fiber-forming polymer selected from the TABLE 5 Fiber Polymer Additive (d) e E1 Y Evaln.
  • a synthetic fiber for artificial hair having hair-like pliable appearance said fiber having a bending rigidity El (dynecm?) and a drape index Y (cm. satisfying the equations the cross section of the fiber passing from a point on the periphery of the fiber to a point on the opposite side of the fiber through the center of gravity thereof is between 60 and microns, and b/a is in the range of from one to one-fifth, b being the longest length of the straight line in the cross section of the fiber at a right angle to the line a between the points at the periphery of the cross section of the fiber

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Artificial Filaments (AREA)
US3790434D 1970-04-18 1971-04-15 Synthetic fibers for artificial hair and production thereof Expired - Lifetime US3790434A (en)

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JP3321770A JPS536253B1 (enrdf_load_stackoverflow) 1970-04-18 1970-04-18

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US (1) US3790434A (enrdf_load_stackoverflow)
JP (1) JPS536253B1 (enrdf_load_stackoverflow)
CA (1) CA955371A (enrdf_load_stackoverflow)
DE (1) DE2118551A1 (enrdf_load_stackoverflow)
GB (1) GB1292758A (enrdf_load_stackoverflow)
NL (1) NL7105245A (enrdf_load_stackoverflow)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4024315A (en) * 1974-02-06 1977-05-17 Shiro Yamada Artificial hair for implanting in human tissue
US4302491A (en) * 1977-11-07 1981-11-24 George Papageorgiou Hair simulating fiber
US4792489A (en) * 1985-12-27 1988-12-20 Aderans Co., Ltd. Synthetic fibers having uneven surfaces and a method of producing same
US4916013A (en) * 1986-06-30 1990-04-10 Kuraray Co., Ltd. Artificial hair and production thereof
EP0918102A1 (en) * 1997-11-21 1999-05-26 Kaneka Corporation Artificial Hair and a bundle of fibers using the same for head decorative articles
US20070184264A1 (en) * 2004-03-19 2007-08-09 Kaneka Corporation Flame-retardant polyester artificial hair
US20070190322A1 (en) * 2004-02-27 2007-08-16 Satoru Harada Artificial hair fiber bundle and hair decorative product using the same
US20080314402A1 (en) * 2006-01-30 2008-12-25 Yutaka Shirakashi Artificial Hair, Wig Using the Same, and Method of Making Artificial Hair
RU2404692C2 (ru) * 2006-02-17 2010-11-27 Адеранс Холдингс Ко., Лтд. Парик
US20120052219A1 (en) * 2009-04-17 2012-03-01 Atsushi Horihata Artificial hair fiber, use thereof and process for producing the same
US20120055499A1 (en) * 2010-09-03 2012-03-08 Matsukaze Co., Ltd. Artificial eyelash and method for attaching the same
KR101154906B1 (ko) 2005-06-16 2012-06-13 덴끼 가가꾸 고교 가부시키가이샤 인공 모발용 섬유 다발 및 그것을 사용한 두발 장식 제품

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5927416U (ja) * 1982-08-13 1984-02-20 三菱重工業株式会社 微量流量計
JPH02276916A (ja) * 1989-04-19 1990-11-13 Akuasu Kk 薬液定量注入装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1964659A (en) * 1933-02-09 1934-06-26 Delaware Rayon Company Spinnerette
US3016599A (en) * 1954-06-01 1962-01-16 Du Pont Microfiber and staple fiber batt
US3492195A (en) * 1967-07-10 1970-01-27 Eastman Kodak Co Processable ultra low denier polyester staple fibers

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1964659A (en) * 1933-02-09 1934-06-26 Delaware Rayon Company Spinnerette
US3016599A (en) * 1954-06-01 1962-01-16 Du Pont Microfiber and staple fiber batt
US3492195A (en) * 1967-07-10 1970-01-27 Eastman Kodak Co Processable ultra low denier polyester staple fibers

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4024315A (en) * 1974-02-06 1977-05-17 Shiro Yamada Artificial hair for implanting in human tissue
US4302491A (en) * 1977-11-07 1981-11-24 George Papageorgiou Hair simulating fiber
US4792489A (en) * 1985-12-27 1988-12-20 Aderans Co., Ltd. Synthetic fibers having uneven surfaces and a method of producing same
US4970042A (en) * 1985-12-27 1990-11-13 Aderans Co., Ltd. Synthetic fibers having uneven surfaces method for melt-spinning
US4916013A (en) * 1986-06-30 1990-04-10 Kuraray Co., Ltd. Artificial hair and production thereof
EP0918102A1 (en) * 1997-11-21 1999-05-26 Kaneka Corporation Artificial Hair and a bundle of fibers using the same for head decorative articles
US7501177B2 (en) * 2004-02-27 2009-03-10 Kaneka Corporation Artificial hair fiber bundle and hair decorative product using the same
US20070190322A1 (en) * 2004-02-27 2007-08-16 Satoru Harada Artificial hair fiber bundle and hair decorative product using the same
US20070184264A1 (en) * 2004-03-19 2007-08-09 Kaneka Corporation Flame-retardant polyester artificial hair
KR101154906B1 (ko) 2005-06-16 2012-06-13 덴끼 가가꾸 고교 가부시키가이샤 인공 모발용 섬유 다발 및 그것을 사용한 두발 장식 제품
US20080314402A1 (en) * 2006-01-30 2008-12-25 Yutaka Shirakashi Artificial Hair, Wig Using the Same, and Method of Making Artificial Hair
RU2404692C2 (ru) * 2006-02-17 2010-11-27 Адеранс Холдингс Ко., Лтд. Парик
US20120052219A1 (en) * 2009-04-17 2012-03-01 Atsushi Horihata Artificial hair fiber, use thereof and process for producing the same
US20120055499A1 (en) * 2010-09-03 2012-03-08 Matsukaze Co., Ltd. Artificial eyelash and method for attaching the same
US8967158B2 (en) * 2010-09-03 2015-03-03 Matsukaze Co., Ltd. Artificial eyelash and method for attaching the same

Also Published As

Publication number Publication date
CA955371A (en) 1974-10-01
NL7105245A (enrdf_load_stackoverflow) 1971-10-20
GB1292758A (en) 1972-10-11
JPS536253B1 (enrdf_load_stackoverflow) 1978-03-06
DE2118551A1 (de) 1971-12-02

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